Anti-Wanda and the other Anti-Fairies are released foolishly by Timmy when he wishes them out to talk to them. After Anti-Wanda and her husband Anti-Cosmo introduce themselves to Timmy, they dub him as the hero that released them. Thanks to Timmy's plan, he was able to use a lot of bad luck to lure the Anti-Fairies to a desert. Timmy then tricks them into going through the door that leads back to Fairy World. She is little little saddened that Timmy tricked them back into Fairy World, but Anti-Cosmo assures her that they will get out very fast since there's no one who could stop them. Then Jorgen comes back from his golf game and then reimprisons the Anti-Fairies again.
Anti-Wanda was seen behind Anti-Fairy World Entrance when Anti-Cosmo came to free them all. Later she and other Anti-Fairies escaped from Fairy World to the Earth where she greeted Timmy, Jimmy and Cindy along with Anti-Cosmo.
Anti-Wanda had strange cravings, mood swings and twitching stomach. She even barfed butterflies (called anti-barf). Anti-Cosmo told her that she is pregnant and she is going to give birth to new Anti-Fairy Baby. She wanted to call her baby Gator but Anti-Cosmo named him Foop (he thought that this sounded much better in his head). After Foop zapped his father with his bottle she showed him the nearest magical power source. Foop was grateful for her help and as a reward he turned her and the other Anti-Fairies into care fairies and she said that even though he is a baby he is already so successful. But at the end of episode, she was turned back into an Anti-Fairy thanks to Foop's crying. Later, she and Anti-Cosmo came to Abracatraz to help Foop get out from the prison.
Anti-Wanda and Anti-Cosmo are trying to steal brownie recepie that belongs to Nana Boom Boom to win annual bake-off. After they saw that Timmy accidentally downloaded it to his brain, they capture him and try to extract the recepie from his brain to win the bake-off and make that Anti-Fairies have all godchildren. At the end, it turns out that they capture Cosmo disguised as Timmy and Anti-Wanda wasn't smart enough to realize that the recipe she found had no ingredients.